Feed gate for automatic stokers



May 15, 1923. v

E. L.y

manv GATE Fox AUTOMATIC sToxERs BROWN. JR

Filed June 2 1, 1920 /ff//f hangers; w

Patented May 15, 1923.

UNITED STATESv wenn PATENT orrlcn EI'IGENE I.. BROWN, JE., or CHICAGO,ILLINOIS, AssIeNOn "ro E. E, srENcEE GEAEE,

or CHICAGO, .,ILLINOIs,

FEED G ATE ron AUIfoMA'r'IO'sToKEEs.

Application aied'zru'ne V2.1, 1920.1 seriaiNo. 390,437.

To all whom t may con/cem:

Be it known that I, EUGENE L. BROWN, J r., a citizen of the UnitedStates, residing at Chicago, in the county of Cook and State ofIllinois, have invented certain new and use ful Improvements in FeedGates for Auto# matic Stokers, of which the followingv is aspecification.

This invention relates to improvements in feed gates for automaticstokers and. has,

In mydevice, the refractorymaterial comprising the protecting portion ofthe feed gate is suspended in such wise that the burning-out of themetal backing will not effect its support so that it will ordinarilycontinue to function. Furthermore, should the ylower portion of therefractorygate be-y come lbroken or cracked, even should itvbecomedisplaced, the balance of the refractory material will still remain inplace and function, Also, should unusual conditions result in burningoff or breaking of the lower part of-y the hangers vthe block orl brickwill be suspended and continue to function.y zAnother object of myinvention is to provide a structure which, when itis necessary tovrepair lthe refractoryfportion of the gate, such may be done 'withoutshuttingr down the Stoker.' Theseand other objects willzbe more fullyset forth in the accompanying drawings'in which- Fig. 1 is avertical'longitudina'l' section through a portionof afurnace's'howingqmy i .Y improved feed gate;

Fig. 2 yis a front proper; a portion thereof being section; y Flg'. 3-1s va perspective of one of `the elevation of the gate Fig. 4 is adetail block or brick in the process Aof 'application to a hanger; and,Fig; 5 isa plan view'of one ofthe 'refractory members,A y l shown inLike numerals denote like throughout the drawings, in which-4 10designates a' front of a furnace having a guide plate 10 located infront and on each side thereof andspaced therefrom. 11 deseignates'f'the front end of the furnace arch;

`elements 12 indicates avertically recipro'cable carrier having an"outwardly projecting flange 12a providedwith the slots 12b therein(seefFigs. 1`and'2'). An apron 13 is' secured at its lower edge bybolts13a or the like in a seat in the `:carrier 12, its sides being guided invertical movements bythe guide plates 10a;`

At suitable locations alongthe frontof carrier 12 are provided thelspaced lugs 12g,

each lpair of which is engaged by cross-pin y le carried by the chain175y kengaging the sprocket 16 which is mounted upon the square-shaft,y17 which maybe rotatedto raise or lowerthel carrier12.

vAplurality of'hangers 18 are provided,

'being circular in cross-section and'being tapering 'fromfbottorntol'top, to'provide a frust'ofconical '-portion, although AI do not.l

wish tofberestricted to this lspecific for-m.`

At the top, these hangers are each provided with a projecting e'a-r 18atransversely aper-y tured at 18h.

'A refractory block 20 is provided for each of thehangers 18,theseblocksjbeinggg pro-l vided with va vertical bore 20l tapering frombottom'to top in substantial correspondence to the tapered hanger 18.The vertical slot 201? leads to a face ofthe block from the bore 202 theslot being of a width slightly greater than the ear.18'a. -At its upperportion,"the block is recessed or notched at 20c to accommodatefadownwardly projecting` portion 12@l of'carrier' 12y (see Figs.' 1 and4L).` At its* lower rear corner, the block is chamfered or beveled at20d.

' In assembling the structurev described v above, the hangerslSareturned `to the po'- sition shown in Fig. 1, relative to the block 2O andmoved upwardly in thevbo-re 20a thereof,' the ear 18a sliding' in theslots 20h-,1 as shown, -luntil the hanger' `18, i is moved to theposition engaging the ta pered bore '201L when it is rotate 180 'degreesf to the`relativeposition shown in Fignl in showing a refractory.

which positionthe ear18a extends upwardly through the slot 12e.

Metallic cover plates-21 are provided vfoi`- each of thebri'cks `2O,these plates being proflange 21H resting upon the ange 12a of thecarrier 12. Each cover plate is provided with a slot 2lb in the flange91a through which the ears 18a may project. A transverse tapered key 25is driven through the aperture 18h 0f each ear 18a, its taperedconstruction serving to wedge the hanger cover plate and block inassembled relation with respect to the carrier l2. The cover plate 2l isinclined at its lower end at 21C to conforml to the chamfered portion20d of block 2O,l

It will be obvious that should hopper hres occur where my feedgate isused and should such fire result inthe burning olf of cover plates 2l,the reciprocable brick or block 2O will still be suspended from thehangers 18, thereby affording protection from the body of the fire.Furthermore, should a portion of the block 2O become cracked or broken,its falling away will not result in the disengagement of the balance ofthe block of the hanger 18, as will be obvious.

.Furthermore should it becomer necessary t0 replace or repair any partof the feed gate during the operation of the stocker mechanism andfurnace, it is possible to repair it without shutting down the stel-rer,merely knocking out such hanger keys 25 as may be necessary and removingthe structure to be repaired, quickly and. readily replacingy it with anew structure.

It `is obvious that my invention is susceptible of numerous modicationsand improvements and l do not wish to be restricted to the formshown,feXcept as defined in the appended claims.

What I claim is l. A feed gate for `furnaces comprising a carrier, aplurality vof refractory members, and an individual. hanger for each ofsaid members detachably suspended from said carrier. f l

2. A device ofthe class described, vcomprising a carrier,v a `hangerattached at its upper end to 4said carrier and depending below thelatter,"a refractory member carried by said hanger, and a metal coverfor said member, said cover being also carried by said carrier. Y v

3. A device of the class described, comprising a reciprocable carrier,said carrier having an apertured flange,a hanger having a portionextending through said aperture ofthe flange, means to detachably sesuresaid hanger to said flange, a refractory block carried by said hangerand depending below said carrier.

d. A device of the class described, comprising a reciprocable carrier,said carrier having an apertured flange, ahanger having a portionextending through said aperture of the flange, means tordetachablyrsecure said hanger to said flange, a refractory block` carried by saidhanger and depending below said carrier, said block being provided withak tapered bore, said hanger being'provided with a tapered portionseated in said bore.

5. A device of the class described, comprising a reciprocable carrier,said carrier having an apertuled flange, a hanger having a portionextending through said aperture of the flange, means to detachab-lysecure said hanger to ksaid flange, a refractory block carried by saidhanger and depending below said carrier, said block being pro vided witha tapered bore, said hanger being provided with av tapered portionseatedin said bore, said block being lfurther provided with a relativelynarrowed slot leading from said bore, the fiattened portionv of saidhanger being insertable through said slot.

6. A device of theclass described, comprising a carriery member havingan apertured projecting flange, a hanger member having a portionextending through Said aperture, a metal member having'a portion restingupon said flange and apertured to permit extension therethrough of saidhanger portion, a key member engaging said hanger portion above saidcover and flange to secure said hanger, cover, and Harige in assembledrelation. v

7. A deviceof the class described, comprising a carrier member having anapertured projecting fiange, a hanger member havino'a Jortion entendin(Ttlirouffhi said b C D aperture, a metal member. having a portion resting'upon said flange and 'apertured to permit extension therethrough 'of'said hanger portion, a key member engaging said hanger portion abovesaid cover and Harige to secure vsaid hanger, cover, and ange inassembled relation, a refractory block carried by said hanger. i

8. A device ofthe class described, comprising 'a carrier memberhaving anaper tured. projecting ,flange, a 'hanger member having a portionextending-"through said aperture, "a metal memberhavingla portionresting upon said flange and apertured to permit extension therethroughvof said hanger portion, a keyA member engaging said hanger portionabove said cover and flange f. to secure said hanger, cover,l and angein assembled relation', -a'refra'ctory block carried by said hanger,said "block being provided with a tapered bore, said hanger beingprovided with al tapered portion seated in said bore. I

9.' In Va feed gate for furnaces,- acarrier, means' for supporting thesaine,v a plurality of' hangers depending from said carrier, arefractory block supported by each of said hangers, and individual coverplates for saidblocks.

l0. ln a :feed 'gate for furnaces, a carrier, means for supporting thesame," a plurality of hangers ldepending 'from said'carrier,` arefractory block supported by each of said Mii) hangers, and individualcover lates for said and means for fastening said hanger in poblocks,said plates being aso supported from said carrier.

11. In a feed gate for furnaces, an L- shaped carrier, an invertedL-shaped protector plate, corresponding flanges of said membersoverlapping and provided with alined openings, a hanger engaging throughsaid openings at its upper end and depending below said carrier,fastening means for said hanger, and a refractory block carried by saidhanger below said carrier and behind said plate.

12. In a feed gate for furnaces, an L- shaped carrier, an invertedL-shaped protector plate, corresponding flanges of said membersoverlapping and provided with alined openings, a hanger engaging throughsaid openings at its upper end and depending below said carrier,fastening means for said hanger, a refractory block carried by saidhanger below said carrier and behind said plate, and a depending elementcarried by said carrier and engaging Within a cutout portion of saidblock.

13. In a feed gate for furnaces, a reciprocable carrier element having alaterally projecting flange, a protector plate depending from thecarrier and having a flange engaging the carrier flange, said flangeshaving alined openings therein, aV hanger engaging through said openingsand depending from said flanges behind said plate, a refractory blockcarried by said hanger,

sition. j

14. In a feed gate for furnaces, a reciprocable carrier element having alaterally projecting flange, a protector plate depending from thecarrier and having a flange engaging the carrier flange, said flangeshaving alined openings therein, a hanger engaging through said openingsand depending from said flanges behind said plate, a refractory blockcarried by said hanger, and means for fastening said hanger in position,said means comprising a key engageable through an opening in the upperend of said hanger above said flanges.

15. A feed gate for furnaces, comprising a carrier having a laterallyprojecting apertured flange, a hanger detachably suspended from saidflange, and a refractory block carried by said hanger, said hangerengaging through said aperture at its upper end and being held inposition by means of a key engageablethrough an aperture in said hangerabove said flange.

16. A feed gate for furnaces, comprising a carrier having a laterally.projecting flange. a hanger detachably suspended froml said flange, arefractory block carried by said hanger, and a protector plate coveringone side of said block `andbeing also detachably suspended from saidcarrier.

In testimony whereof, I'have subscribed my name.

EUGENE L. BROWN, JR.

